精选优质文档-倾情为你奉上There were two high mountains between Jizhou in the south and Heyang in the north. One was called Taihang Mountain and the other Wangwu Mountain. Both of the mountains were very high. Just to the north of the mountains lived an old man called Yu Gong who was nearly 90 years old. With the two high mountains just in front of his house, his family and he had to walk a long way around the mountains whenever they had something to do on the other side of the mountains. One day, Yu G
